Motor Carrier Services Contacts
PO Box 4639
Helena, MT 59604-4639
Hours: 7:30 a.m. to 5:00 p.m. Mountain Time, Monday – Friday (except Holidays)
MCS: 406-444-6130 | Permitting: 406-444-7262 | IRP/IFTA/UCR: 406-444-2998
Fax: 406-444-9263
General Permit and License Questions
For general Permit questions, use the following email:
Superload Applications Submittals and questions need to use the following email address:
IRP and IFTA Customers, use the following email address
For IFTA Tax Returns, please visit our IFTA page
ePART Security
To our Carriers and Third-Party online accounts for ePART. Send an email to
- Include in the email, your Company Name, USDOT Number, Account Number, and email addresses.
- Make sure that you have some sort of identification in your signature template area on your email for MDT's confirmation.
- For your protection, we deactivate accounts with invalid email addresses.
ePART Training
ePART Training is available online upon request. Please send an email to
Inform us to what application type the training is needed in: IFTA Tax Return/Quarterlies, IFTA Credentialing, IRP, and/or Permitting; or UCR.
We request that you provide to us:
Company Name, Contact Name, Email Address, Phone number, City, and the number of users needing to be trained.
MCSAP Program: 406-444-3300 | Fax: 406-444-7681
The Motor Carrier Services Division (MCS) protects Montana's and the Federal Government's investment in Montana's highway system and ensures the safety of the traveling public through uniform regulation of the commercial motor carrier industry and enforcement of all state and federal commercial motor carrier laws, rules, and regulations.
Enforcement Bureau
- The Enforcement Bureau is comprised of Montana Peace officers.
- Enforcement Bureau officers protect Montana's highway system and ensure the safety of the traveling public through the service-oriented enforcement of State and Federal commercial and agricultural vehicle and vehicle-driver laws, rules, and regulations.
- MCS officers work in weigh station facilities across the state and on the open road using enforcement vehicles equipped with various devices to assist in their jobs.
- Other EB responsibilities include fuel tax evasion investigation, livestock brand inspection, and render assistance to other law enforcement agencies.
Commercial Vehicle Operations Bureau
Licensing and Permitting Section
The Licensing and Permitting Section offer services to the commercial motor carrier industry that are required by the industry to operate legally in the State of Montana.
- International Registration Plan (IRP): requires that member jurisdictions operate under uniform commercial vehicle registration and licensing procedures.
- International Fuel Tax Agreement (IFTA): is a tax collection agreement by and among the 48 contiguous States and 10 Canadian Provinces which allows for the uniform administration of motor fuels use taxation laws with respect to qualified motor vehicles operated in more than one-member jurisdiction.
- Unified Carrier Registration (UCR) program: UCR requires individuals and companies that operate commercial motor vehicles in interstate or international commerce to register their business with Montana and pay an annual fee based on the size of their fleet.
- Heavy Vehicle Use Tax (HVUT) program: whereby Montana-based carriers are monitored and certified compliant by the state with Federal commercial vehicle weight tax requirements.
- Permit Services: for carriers who wish to travel on Montana's highways but whose vehicles are noncompliant with size and/or weight.
Operations Section
- The Operations Section manages Montana's ITD, ITS/CVO and MCSAP programs.
- Oversees, coordinates, and maintains the development, deployment and maintenance of the Division's information technology and other high technology infrastructure.
- Provides statewide MCS purchasing, contract development, and financial, revenue and budget support.
- Collects, analyses and reports data and information regarding the division's activities to support management of MCS.
- Manages participation in any MDT, regional, national, or international projects involving MCS.
- The Operations Section is responsible for collecting, assimilating, analyzing, and reporting of data, information and statistics required by the Federal Highway's Administration (FHWA) for Montana's Commercial Vehicle Size and Weight Enforcement Plan and Certification. Montana's Commercial Vehicle Size and Weight program requires certification, in this case by FHWA to be eligible for full construction funds.
- The Operations Section is responsible for developing the annual MCSAP Commercial Vehicle Safety Plan and certification documentation, including the program's budget, and delivering the program to meet the MCSAP requirements as required under Code of Federal Regulations (CFR), Title 49. Execution and delivering of an acceptable MCSAP program are required for Montana to maintain eligibility for full highway construction funding.
Motor Carrier Safety Assistance Program (MCSAP)
- The goal of MCSAP is to reduce CMV-involved accidents, fatalities, and injuries through consistent, uniform, and effective CMV safety programs.
- The MCSAP Section provides USDOT numbers for Montana intrastate carriers.
- Provides information to Montana's motor carriers on how to comply with Montana and Federal Motor Carrier Safety Regulations and Hazardous Materials Regulations.
- Performs compliance reviews and safety audits.